The 1946 Battersea North by-election was a parliamentary by-election held on 25 July 1946 for the British House of Commons constituency of Battersea North in the Metropolitan Borough of Battersea.
The seat had become vacant on the resignation from the House of Common of the constituency's Labour Member of Parliament (MP), Francis Douglas, who had been appointed as Governor of Malta and ennobled as Baron Douglas of Barloch. He had held the seat since a by-election in 1940.